You may need this test if it is part of routine blood testing. You may also need your hematocrit checked before having surgery or if your healthcare provider suspects you have a red blood cell disorder. Too many red blood cells is called polycythemia. Too few red blood cells is called anemia. Polycythemia may cause: Heart attack. Stroke
MySQL CURRENT_DATE. Description. In MySQL the CURRENT_DATE returns the current date in âYYYY-MM-DDâ format or YYYYMMDD format depending on whether numeric or string is used in the function. CURDATE() and CURRENT_DATE() are the synonym of CURRENT_DATE. Note: All of the example codes of this page will produce outputs depending upon the current date. Syntax :
ISDATE (Transact-SQL) Returns 1 if the expression is a valid date, time, or datetime value; otherwise, 0. ISDATE returns 0 if the expression is a datetime2 value. For an overview of all Transact-SQL date and time data types and functions, see Date and Time Data Types and Functions (Transact-SQL). Note that the range for datetime data is 1753-01-01 through 9999-12-31, while the range for date data is 0001-01-01 through 9999-12-31.